Here’s how Prusa’s 4-color mod works ... To me, this is how we’re going to do multi-color 3D printing in the near future. Stepper motors are cheap, boards that switch motors on and off ...

We’ve all seen 3D printed jigs that use a permanent ... Extruders 2-7 are virtual and will cause the print to get color after printing each layer. Overall, this looks like a fun project even ...